G'day all, I've recently rebuilt my '84 LWB 2.8L petrol as it had blown the head gasket and warped the head. I replaced it with the P90 head which is supposedly meant for a turbo'd engine as it has a larger combustion chamber and I was told that it might lower the compression on a non-turbo motor. It cranks over no worries but will not start. I've had it compression tested which came to 25 (apparently supposed to be 125) and also been told it might be an ignition and/or valve timing problem. I'm desperately try to get her going again so I'm just wondering if anyone has done the same head swap and the problems/solutions that you have had, or if anyone has any helpful information then it would be greatly appreciated. Cheers, centra.